shoei raid2 - best fitting, quietest, lightest lid ive had yet.
best thing is, theyre wind tunnel developed meaning you get very good high speed stability (no nodding dog syndrome) plus virtually no wind noise at 3 figure speeds.
(assuming you have fitted the visor proper lol - which is easy enough with the quick release tabs)
pick them up about 200 notes. think mine was 215, which i thought was pretty damn reasonable for a shoei.
should come with pinlock antifog visor.
http://www.racevisors.co.uk do good cheap apttern replacement visors, including the very cool black tint & iridium ones for less than £20 with a free bag